ML2652/ML2653
PIN DESCRIPTION
(Continued)
NAME
FUNCTION
NAME
FUNCTION
RxD
RxE
Receive data output. Digital output which
contains receive data sent to the controller.
Receive data valid. Digital output to the controller
that indicates when the receive data (RxD) is
valid.
Local loopback. Digital input from the controller
which forces the device to loopback transmit data
without sending it on the media.
Full Duplex Enable. When enabled the 10BASE-T
MAU loopback and collision detect are disabled.
LPBK must be disabled when using this function.
Controller selection input. Digital input which
selects one of four standard controller timing
interfaces. This pin has an internal pulldown
resistor to GND.
Controller select input. Digital input which selects
one of four standard controller timing interfaces.
This pin has an internal pulldown resistor to GND.
Controller select input. Digital input which selects
one of four standard controller timing interfaces.
This pin has an internal pulldown resistor to GND.
Receive squelch level select input. Pin has
internal pullup resistor to VCC.
RSL = High Receive squelch level = 10Base-T
RSL = Low Receive squelch level = extended
distance
Transmit status output. Digital output which
indicates data transmission on Tx+ and Tx–.
Pin is open drain output with resistor pullup and is
capable of driving an LED.
XMT
pin and
RCV
pin
are the same pin for the ML2653.
Receive status output. Digital output which
indicates unsquelched data reception on Rx+
and Rx–. Pin is an open drain output with resistor
pullup and is capable of driving an LED.
CLS
Collision status output. Digital output which
indicates that collision condition has been
detected. Pin is an open drain output with resistor
pullup and is capable of driving an LED.
Link test pass output/input. This pin consists of an
open drain output transistor with a resistor pullup
that serves both as a link test pass output and a
link test disable input. When used as an output,
this pin is capable of driving an LED.
LTP
= High, link test failed
LTP
= Low, link test pass
LTP
= GND, link test disabled
LTP
LPBK
FD
CS0
AUI/TP AUI/twisted pair interface select input.
AUI/TP = High, AUI selected
AUI/TP = Low, TP selected
RPOL
JAB
This pin must be grounded at all times.
Jabber detect output. Digital output which
indicates that the jabber condition has been
detected. Pin is an open drain output with resister
pullup and is capable of driving a LED.
JAB
= High, normal
JAB
= Low, jabber detected
CS1
CS2
RSL
AUISEL
AUI/TP port output status
AUISEL
= High, TP port selected
AUISEL
= Low, AUI port selected
JABDIS Jabber disable input
JABDIS = High, jabber disabled
JABDIS = Low, normal operation
NC
No connect. Leave this pin open circuit.
XMT
RCV
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are limits beyond which the
life of the integrated circuit may be impaired. All voltages
unless otherwise specified are measured with respect to
GND. (Note 1)
V
CC
supply voltage .................................................. +6.5V
All inputs and outputs ....................... –0.3V to V
CC
+ 0.3V
Input current per pin ............................................. ±25 mA
Power dissipation .............................................. 0.75 Watt
Storage temperature range ........................ –65°C to 150°C
Junction Temperature .............................................. 150°C
Lead temperature (soldering, 10 sec) ....................... 260°C
Thermal Resistance (q
JA
)
28-Lead PLCC ................................................... 60°C/W
44-Lead PLCC ................................................... 54°C/W
44-Lead TQFP ................................................... 67°C/W
4
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
